Asbestos is a Canadian City located in the Estrie region of southeastern Quebec on the Nicolet River. Asbestos is the seat of Les Sources Regional County Municipality, formerly known as the Asbestos Regional County Municipality. The town covers an area of , including land acquired due to the merger of the City of Asbestos with the Municipality of Trois-Lacs on Dec 8, 1999.
As of the 2011 census, 7,096 people resided in Asbestos. It is situated in the centre of a square formed by the cities of Drummondville, Sherbrooke and Victoriaville, and the Nicolet River to the north. It is the site of the Jeffrey mine, until recently the world's largest asbestos mine, which has long been the town's largest employer, and of the now-closed Magnola magnesium refinery. It was the site of the famous 1949 Asbestos Strike.